Basic Parameters: Multi-core system Button No.: 7 keys + Wheel Direction of wheel: one way direction Tracking: HoleLESS HD engine Type: Wired Mouse connection: USB (2.0/3.0) Hardware system requirements: Windows /Mac OS/Android/Linux Software system requirements: Windows XP / Vista / Windows 7 Mouse size: 123 x 82 x 42 (mm) Cable length: 1.8 m Mouse weight: 155 g Technical Parameters: Resolution: 100 Dpi to 3，200Dpi (5 ranges adjustable) Image processing: 368 mega pixels / sec Acceleration: 30g Tracking speed: 75 inches / sec Report rate : 1，000 Hz(4 ranges adjustable) Key response time: 1ms 160K onboard memory